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99 lines
4.5 KiB
HTML
99 lines
4.5 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Checks (Debugging with GDB)</title>
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<meta name="description" content="Checks (Debugging with GDB)">
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<meta name="keywords" content="Checks (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Languages.html#Languages" rel="up" title="Languages">
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<link href="Type-Checking.html#Type-Checking" rel="next" title="Type Checking">
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<link href="Show.html#Show" rel="prev" title="Show">
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<style type="text/css">
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<!--
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a.summary-letter {text-decoration: none}
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span.nolinebreak {white-space: nowrap}
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span.roman {font-family: initial; font-weight: normal}
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span.sansserif {font-family: sans-serif; font-weight: normal}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Checks"></a>
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<div class="header">
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<p>
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Next: <a href="Supported-Languages.html#Supported-Languages" accesskey="n" rel="next">Supported Languages</a>, Previous: <a href="Show.html#Show" accesskey="p" rel="prev">Show</a>, Up: <a href="Languages.html#Languages" accesskey="u" rel="up">Languages</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Type-and-Range-Checking"></a>
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<h3 class="section">15.3 Type and Range Checking</h3>
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<p>Some languages are designed to guard you against making seemingly common
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errors through a series of compile- and run-time checks. These include
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checking the type of arguments to functions and operators and making
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sure mathematical overflows are caught at run time. Checks such as
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these help to ensure a program’s correctness once it has been compiled
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by eliminating type mismatches and providing active checks for range
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errors when your program is running.
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</p>
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<p>By default <small>GDB</small> checks for these errors according to the
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rules of the current source language. Although <small>GDB</small> does not check
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the statements in your program, it can check expressions entered directly
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into <small>GDB</small> for evaluation via the <code>print</code> command, for example.
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</p>
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<table class="menu" border="0" cellspacing="0">
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<tr><td align="left" valign="top">• <a href="Type-Checking.html#Type-Checking" accesskey="1">Type Checking</a>:</td><td> </td><td align="left" valign="top">An overview of type checking
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</td></tr>
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<tr><td align="left" valign="top">• <a href="Range-Checking.html#Range-Checking" accesskey="2">Range Checking</a>:</td><td> </td><td align="left" valign="top">An overview of range checking
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</td></tr>
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</table>
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<a name="index-type-checking"></a>
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<a name="index-checks_002c-type"></a>
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</body>
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</html>
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